diff --git a/gns3server/handlers/api/compute/docker_handler.py b/gns3server/handlers/api/compute/docker_handler.py
index e3a9ee80..9596e0ae 100644
--- a/gns3server/handlers/api/compute/docker_handler.py
+++ b/gns3server/handlers/api/compute/docker_handler.py
@@ -263,10 +263,11 @@ class DockerHandler:
 
         docker_manager = Docker.instance()
         container = docker_manager.get_node(request.match_info["node_id"], project_id=request.match_info["project_id"])
-        nio = container.ethernet_adapters[int(request.match_info["adapter_number"])].get_nio(0)
+        adapter_number = int(request.match_info["adapter_number"])
+        nio = container.ethernet_adapters[adapter_number].get_nio(0)
         if "filters" in request.json and nio:
             nio.filters = request.json["filters"]
-        yield from container.adapter_update_nio_binding(int(request.match_info["port_number"]), nio)
+        yield from container.adapter_update_nio_binding(adapter_number, nio)
         response.set_status(201)
         response.json(request.json)
 
diff --git a/gns3server/handlers/api/compute/iou_handler.py b/gns3server/handlers/api/compute/iou_handler.py
index ae661c36..3b3001f8 100644
--- a/gns3server/handlers/api/compute/iou_handler.py
+++ b/gns3server/handlers/api/compute/iou_handler.py
@@ -301,12 +301,9 @@ class IOUHandler:
         nio = vm.adapters[adapter_number].get_nio(port_number)
         if "filters" in request.json and nio:
             nio.filters = request.json["filters"]
-        yield from vm.adapter_update_nio_binding(
-            adapter_number,
-            port_number,
-            nio)
+        yield from vm.adapter_update_nio_binding(adapter_number, port_number, nio)
         response.set_status(201)
-        response.json(nio)
+        response.json(request.json)
 
     @Route.delete(
         r"/projects/{project_id}/iou/nodes/{node_id}/adapters/{adapter_number:\d+}/ports/{port_number:\d+}/nio",
diff --git a/gns3server/handlers/api/compute/vmware_handler.py b/gns3server/handlers/api/compute/vmware_handler.py
index 06d8a545..e3cad952 100644
--- a/gns3server/handlers/api/compute/vmware_handler.py
+++ b/gns3server/handlers/api/compute/vmware_handler.py
@@ -279,12 +279,13 @@ class VMwareHandler:
 
         vmware_manager = VMware.instance()
         vm = vmware_manager.get_node(request.match_info["node_id"], project_id=request.match_info["project_id"])
-        nio = vm.ethernet_adapters[int(request.match_info["adapter_number"])]
+        adapter_number = int(request.match_info["adapter_number"])
+        nio = vm.ethernet_adapters[adapter_number]
         if "filters" in request.json and nio:
             nio.filters = request.json["filters"]
-            yield from vm.adapter_update_nio_binding(int(request.match_info["adapter_number"]), nio)
-            response.set_status(201)
-            response.json(request.json)
+        yield from vm.adapter_update_nio_binding(adapter_number, nio)
+        response.set_status(201)
+        response.json(request.json)
 
     @Route.delete(
         r"/projects/{project_id}/vmware/nodes/{node_id}/adapters/{adapter_number:\d+}/ports/{port_number:\d+}/nio",